diff options
Diffstat (limited to 'src/multimedia/audio/qaudiooutput_win32_p.cpp')
| -rw-r--r-- | src/multimedia/audio/qaudiooutput_win32_p.cpp | 715 |
1 files changed, 0 insertions, 715 deletions
diff --git a/src/multimedia/audio/qaudiooutput_win32_p.cpp b/src/multimedia/audio/qaudiooutput_win32_p.cpp deleted file mode 100644 index d5b31a3..0000000 --- a/src/multimedia/audio/qaudiooutput_win32_p.cpp +++ /dev/null @@ -1,715 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists for the convenience -// of other Qt classes. This header file may change from version to -// version without notice, or even be removed. -// -// INTERNAL USE ONLY: Do NOT use for any other purpose. -// - -#include "qaudiooutput_win32_p.h" - -#ifndef SPEAKER_FRONT_LEFT - #define SPEAKER_FRONT_LEFT 0x00000001 - #define SPEAKER_FRONT_RIGHT 0x00000002 - #define SPEAKER_FRONT_CENTER 0x00000004 - #define SPEAKER_LOW_FREQUENCY 0x00000008 - #define SPEAKER_BACK_LEFT 0x00000010 - #define SPEAKER_BACK_RIGHT 0x00000020 - #define SPEAKER_FRONT_LEFT_OF_CENTER 0x00000040 - #define SPEAKER_FRONT_RIGHT_OF_CENTER 0x00000080 - #define SPEAKER_BACK_CENTER 0x00000100 - #define SPEAKER_SIDE_LEFT 0x00000200 - #define SPEAKER_SIDE_RIGHT 0x00000400 - #define SPEAKER_TOP_CENTER 0x00000800 - #define SPEAKER_TOP_FRONT_LEFT 0x00001000 - #define SPEAKER_TOP_FRONT_CENTER 0x00002000 - #define SPEAKER_TOP_FRONT_RIGHT 0x00004000 - #define SPEAKER_TOP_BACK_LEFT 0x00008000 - #define SPEAKER_TOP_BACK_CENTER 0x00010000 - #define SPEAKER_TOP_BACK_RIGHT 0x00020000 - #define SPEAKER_RESERVED 0x7FFC0000 - #define SPEAKER_ALL 0x80000000 -#endif - -#ifndef _WAVEFORMATEXTENSIBLE_ - - #define _WAVEFORMATEXTENSIBLE_ - typedef struct - { - WAVEFORMATEX Format; // Base WAVEFORMATEX data - union - { - WORD wValidBitsPerSample; // Valid bits in each sample container - WORD wSamplesPerBlock; // Samples per block of audio data; valid - // if wBitsPerSample=0 (but rarely used). - WORD wReserved; // Zero if neither case above applies. - } Samples; - DWORD dwChannelMask; // Positions of the audio channels - GUID SubFormat; // Format identifier GUID - } WAVEFORMATEXTENSIBLE, *PWAVEFORMATEXTENSIBLE, *LPPWAVEFORMATEXTENSIBLE; - typedef const WAVEFORMATEXTENSIBLE* LPCWAVEFORMATEXTENSIBLE; - -#endif - -#if !defined(WAVE_FORMAT_EXTENSIBLE) -#define WAVE_FORMAT_EXTENSIBLE 0xFFFE -#endif - -//#define DEBUG_AUDIO 1 - -QT_BEGIN_NAMESPACE - -QAudioOutputPrivate::QAudioOutputPrivate(const QByteArray &device) -{ - bytesAvailable = 0; - buffer_size = 0; - period_size = 0; - m_device = device; - totalTimeValue = 0; - intervalTime = 1000; - audioBuffer = 0; - errorState = QAudio::NoError; - deviceState = QAudio::StoppedState; - audioSource = 0; - pullMode = true; - finished = false; -} - -QAudioOutputPrivate::~QAudioOutputPrivate() -{ - mutex.lock(); - finished = true; - mutex.unlock(); - - close(); -} - -void CALLBACK QAudioOutputPrivate::waveOutProc( HWAVEOUT hWaveOut, UINT uMsg, - DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 ) -{ - Q_UNUSED(dwParam1) - Q_UNUSED(dwParam2) - Q_UNUSED(hWaveOut) - - QAudioOutputPrivate* qAudio; - qAudio = (QAudioOutputPrivate*)(dwInstance); - if(!qAudio) - return; - - QMutexLocker(&qAudio->mutex); - - switch(uMsg) { - case WOM_OPEN: - qAudio->feedback(); - break; - case WOM_CLOSE: - return; - case WOM_DONE: - if(qAudio->finished || qAudio->buffer_size == 0 || qAudio->period_size == 0) { - return; - } - qAudio->waveFreeBlockCount++; - if(qAudio->waveFreeBlockCount >= qAudio->buffer_size/qAudio->period_size) - qAudio->waveFreeBlockCount = qAudio->buffer_size/qAudio->period_size; - qAudio->feedback(); - break; - default: - return; - } -} - -WAVEHDR* QAudioOutputPrivate::allocateBlocks(int size, int count) -{ - int i; - unsigned char* buffer; - WAVEHDR* blocks; - DWORD totalBufferSize = (size + sizeof(WAVEHDR))*count; - - if((buffer=(unsigned char*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY, - totalBufferSize)) == 0) { - qWarning("QAudioOutput: Memory allocation error"); - return 0; - } - blocks = (WAVEHDR*)buffer; - buffer += sizeof(WAVEHDR)*count; - for(i = 0; i < count; i++) { - blocks[i].dwBufferLength = size; - blocks[i].lpData = (LPSTR)buffer; - buffer += size; - } - return blocks; -} - -void QAudioOutputPrivate::freeBlocks(WAVEHDR* blockArray) -{ - WAVEHDR* blocks = blockArray; - - int count = buffer_size/period_size; - - for(int i = 0; i < count; i++) { - waveOutUnprepareHeader(hWaveOut,blocks, sizeof(WAVEHDR)); - blocks++; - } - HeapFree(GetProcessHeap(), 0, blockArray); -} - -QAudioFormat QAudioOutputPrivate::format() const -{ - return settings; -} - -void QAudioOutputPrivate::setFormat(const QAudioFormat& fmt) -{ - if (deviceState == QAudio::StoppedState) - settings = fmt; -} - -void QAudioOutputPrivate::start(QIODevice* device) -{ - if(deviceState != QAudio::StoppedState) - close(); - - if(!pullMode && audioSource) - delete audioSource; - - pullMode = true; - audioSource = device; - - deviceState = QAudio::ActiveState; - - if(!open()) - return; - - emit stateChanged(deviceState); -} - -QIODevice* QAudioOutputPrivate::start() -{ - if(deviceState != QAudio::StoppedState) - close(); - - if(!pullMode && audioSource) - delete audioSource; - - pullMode = false; - audioSource = new OutputPrivate(this); - audioSource->open(QIODevice::WriteOnly|QIODevice::Unbuffered); - - deviceState = QAudio::IdleState; - - if(!open()) - return 0; - - emit stateChanged(deviceState); - - return audioSource; -} - -void QAudioOutputPrivate::stop() -{ - if(deviceState == QAudio::StoppedState) - return; - close(); - if(!pullMode && audioSource) { - delete audioSource; - audioSource = 0; - } - emit stateChanged(deviceState); -} - -bool QAudioOutputPrivate::open() -{ -#ifdef DEBUG_AUDIO - QTime now(QTime::currentTime()); - qDebug()<<now.second()<<"s "<<now.msec()<<"ms :open()"; -#endif - - period_size = 0; - - if (!settings.isValid()) { - qWarning("QAudioOutput: open error, invalid format."); - } else if (settings.channelCount() <= 0) { - qWarning("QAudioOutput: open error, invalid number of channels (%d).", - settings.channelCount()); - } else if (settings.sampleSize() <= 0) { - qWarning("QAudioOutput: open error, invalid sample size (%d).", - settings.sampleSize()); - } else if (settings.frequency() < 8000 || settings.frequency() > 96000) { - qWarning("QAudioOutput: open error, frequency out of range (%d).", settings.frequency()); - } else if (buffer_size == 0) { - // Default buffer size, 200ms, default period size is 40ms - buffer_size - = (settings.frequency() - * settings.channelCount() - * settings.sampleSize() - + 39) / 40; - period_size = buffer_size / 5; - } else { - period_size = buffer_size / 5; - } - - if (period_size == 0) { - errorState = QAudio::OpenError; - deviceState = QAudio::StoppedState; - emit stateChanged(deviceState); - return false; - } - - waveBlocks = allocateBlocks(period_size, buffer_size/period_size); - - mutex.lock(); - waveFreeBlockCount = buffer_size/period_size; - mutex.unlock(); - - waveCurrentBlock = 0; - - if(audioBuffer == 0) - audioBuffer = new char[buffer_size]; - - timeStamp.restart(); - elapsedTimeOffset = 0; - - wfx.nSamplesPerSec = settings.frequency(); - wfx.wBitsPerSample = settings.sampleSize(); - wfx.nChannels = settings.channels(); - wfx.cbSize = 0; - - bool surround = false; - - if (settings.channels() > 2) - surround = true; - - wfx.wFormatTag = WAVE_FORMAT_PCM; - wfx.nBlockAlign = (wfx.wBitsPerSample >> 3) * wfx.nChannels; - wfx.nAvgBytesPerSec = wfx.nBlockAlign * wfx.nSamplesPerSec; - - QDataStream ds(&m_device, QIODevice::ReadOnly); - quint32 deviceId; - ds >> deviceId; - - if (!surround) { - if (waveOutOpen(&hWaveOut, UINT_PTR(deviceId), &wfx, - (DWORD_PTR)&waveOutProc, - (DWORD_PTR) this, - CALLBACK_FUNCTION) != MMSYSERR_NOERROR) { - errorState = QAudio::OpenError; - deviceState = QAudio::StoppedState; - emit stateChanged(deviceState); - qWarning("QAudioOutput: open error"); - return false; - } - } else { - WAVEFORMATEXTENSIBLE wfex; - wfex.Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE; - wfex.Format.nChannels = settings.channels(); - wfex.Format.wBitsPerSample = settings.sampleSize(); - wfex.Format.nSamplesPerSec = settings.frequency(); - wfex.Format.nBlockAlign = wfex.Format.nChannels*wfex.Format.wBitsPerSample/8; - wfex.Format.nAvgBytesPerSec=wfex.Format.nSamplesPerSec*wfex.Format.nBlockAlign; - wfex.Samples.wValidBitsPerSample=wfex.Format.wBitsPerSample; - static const GUID _KSDATAFORMAT_SUBTYPE_PCM = { - 0x00000001, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}}; - wfex.SubFormat=_KSDATAFORMAT_SUBTYPE_PCM; - wfex.Format.cbSize=22; - - wfex.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT; - if (settings.channels() >= 4) - wfex.dwChannelMask |= SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT; - if (settings.channels() >= 6) - wfex.dwChannelMask |= SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY; - if (settings.channels() == 8) - wfex.dwChannelMask |= SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT; - - if (waveOutOpen(&hWaveOut, UINT_PTR(deviceId), &wfex.Format, - (DWORD_PTR)&waveOutProc, - (DWORD_PTR) this, - CALLBACK_FUNCTION) != MMSYSERR_NOERROR) { - errorState = QAudio::OpenError; - deviceState = QAudio::StoppedState; - emit stateChanged(deviceState); - qWarning("QAudioOutput: open error"); - return false; - } - } - - totalTimeValue = 0; - timeStampOpened.restart(); - elapsedTimeOffset = 0; - - errorState = QAudio::NoError; - if(pullMode) { - deviceState = QAudio::ActiveState; - QTimer::singleShot(10, this, SLOT(feedback())); - } else - deviceState = QAudio::IdleState; - - return true; -} - -void QAudioOutputPrivate::close() -{ - if(deviceState == QAudio::StoppedState) - return; - - deviceState = QAudio::StoppedState; - errorState = QAudio::NoError; - int delay = (buffer_size-bytesFree())*1000/(settings.frequency() - *settings.channels()*(settings.sampleSize()/8)); - waveOutReset(hWaveOut); - Sleep(delay+10); - - freeBlocks(waveBlocks); - waveOutClose(hWaveOut); - delete [] audioBuffer; - audioBuffer = 0; - buffer_size = 0; -} - -int QAudioOutputPrivate::bytesFree() const -{ - int buf; - buf = waveFreeBlockCount*period_size; - - return buf; -} - -int QAudioOutputPrivate::periodSize() const -{ - return period_size; -} - -void QAudioOutputPrivate::setBufferSize(int value) -{ - if(deviceState == QAudio::StoppedState) - buffer_size = value; -} - -int QAudioOutputPrivate::bufferSize() const -{ - return buffer_size; -} - -void QAudioOutputPrivate::setNotifyInterval(int ms) -{ - intervalTime = qMax(0, ms); -} - -int QAudioOutputPrivate::notifyInterval() const -{ - return intervalTime; -} - -qint64 QAudioOutputPrivate::processedUSecs() const -{ - if (deviceState == QAudio::StoppedState) - return 0; - qint64 result = qint64(1000000) * totalTimeValue / - (settings.channels()*(settings.sampleSize()/8)) / - settings.frequency(); - - return result; -} - -qint64 QAudioOutputPrivate::write( const char *data, qint64 len ) -{ - // Write out some audio data - if (deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState) - return 0; - - char* p = (char*)data; - int l = (int)len; - - WAVEHDR* current; - int remain; - current = &waveBlocks[waveCurrentBlock]; - while(l > 0) { - mutex.lock(); - if(waveFreeBlockCount==0) { - mutex.unlock(); - break; - } - mutex.unlock(); - - if(current->dwFlags & WHDR_PREPARED) - waveOutUnprepareHeader(hWaveOut, current, sizeof(WAVEHDR)); - - if(l < period_size) - remain = l; - else - remain = period_size; - memcpy(current->lpData, p, remain); - - l -= remain; - p += remain; - current->dwBufferLength = remain; - waveOutPrepareHeader(hWaveOut, current, sizeof(WAVEHDR)); - waveOutWrite(hWaveOut, current, sizeof(WAVEHDR)); - - mutex.lock(); - waveFreeBlockCount--; -#ifdef DEBUG_AUDIO - qDebug("write out l=%d, waveFreeBlockCount=%d", - current->dwBufferLength,waveFreeBlockCount); -#endif - mutex.unlock(); - - totalTimeValue += current->dwBufferLength; - waveCurrentBlock++; - waveCurrentBlock %= buffer_size/period_size; - current = &waveBlocks[waveCurrentBlock]; - current->dwUser = 0; - errorState = QAudio::NoError; - if (deviceState != QAudio::ActiveState) { - deviceState = QAudio::ActiveState; - emit stateChanged(deviceState); - } - } - return (len-l); -} - -void QAudioOutputPrivate::resume() -{ - if(deviceState == QAudio::SuspendedState) { - deviceState = QAudio::ActiveState; - errorState = QAudio::NoError; - waveOutRestart(hWaveOut); - QTimer::singleShot(10, this, SLOT(feedback())); - emit stateChanged(deviceState); - } -} - -void QAudioOutputPrivate::suspend() -{ - if(deviceState == QAudio::ActiveState || deviceState == QAudio::IdleState) { - int delay = (buffer_size-bytesFree())*1000/(settings.frequency() - *settings.channels()*(settings.sampleSize()/8)); - waveOutPause(hWaveOut); - Sleep(delay+10); - deviceState = QAudio::SuspendedState; - errorState = QAudio::NoError; - emit stateChanged(deviceState); - } -} - -void QAudioOutputPrivate::feedback() -{ -#ifdef DEBUG_AUDIO - QTime now(QTime::currentTime()); - qDebug()<<now.second()<<"s "<<now.msec()<<"ms :feedback()"; -#endif - bytesAvailable = bytesFree(); - - if(!(deviceState==QAudio::StoppedState||deviceState==QAudio::SuspendedState)) { - if(bytesAvailable >= period_size) - QMetaObject::invokeMethod(this, "deviceReady", Qt::QueuedConnection); - } -} - -bool QAudioOutputPrivate::deviceReady() -{ - if(deviceState == QAudio::StoppedState || deviceState == QAudio::SuspendedState) - return false; - - if(pullMode) { - int chunks = bytesAvailable/period_size; -#ifdef DEBUG_AUDIO - qDebug()<<"deviceReady() avail="<<bytesAvailable<<" bytes, period size="<<period_size<<" bytes"; - qDebug()<<"deviceReady() no. of chunks that can fit ="<<chunks<<", chunks in bytes ="<<chunks*period_size; -#endif - bool startup = false; - if(totalTimeValue == 0) - startup = true; - - bool full=false; - - mutex.lock(); - if(waveFreeBlockCount==0) full = true; - mutex.unlock(); - - if (full){ -#ifdef DEBUG_AUDIO - qDebug() << "Skipping data as unable to write"; -#endif - if((timeStamp.elapsed() + elapsedTimeOffset) > intervalTime ) { - emit notify(); - elapsedTimeOffset = timeStamp.elapsed() + elapsedTimeOffset - intervalTime; - timeStamp.restart(); - } - return true; - } - - if(startup) - waveOutPause(hWaveOut); - int input = period_size*chunks; - int l = audioSource->read(audioBuffer,input); - if(l > 0) { - int out= write(audioBuffer,l); - if(out > 0) { - if (deviceState != QAudio::ActiveState) { - deviceState = QAudio::ActiveState; - emit stateChanged(deviceState); - } - } - if ( out < l) { - // Didn't write all data - audioSource->seek(audioSource->pos()-(l-out)); - } - if(startup) - waveOutRestart(hWaveOut); - } else if(l == 0) { - bytesAvailable = bytesFree(); - - int check = 0; - - mutex.lock(); - check = waveFreeBlockCount; - mutex.unlock(); - - if(check == buffer_size/period_size) { - if (deviceState != QAudio::IdleState) { - errorState = QAudio::UnderrunError; - deviceState = QAudio::IdleState; - emit stateChanged(deviceState); - } - } - - } else if(l < 0) { - bytesAvailable = bytesFree(); - if (errorState != QAudio::IOError) - errorState = QAudio::IOError; - } - } else { - int buffered; - - mutex.lock(); - buffered = waveFreeBlockCount; - mutex.unlock(); - - if (buffered >= buffer_size/period_size && deviceState == QAudio::ActiveState) { - if (deviceState != QAudio::IdleState) { - errorState = QAudio::UnderrunError; - deviceState = QAudio::IdleState; - emit stateChanged(deviceState); - } - } - } - if(deviceState != QAudio::ActiveState && deviceState != QAudio::IdleState) - return true; - - if(intervalTime && (timeStamp.elapsed() + elapsedTimeOffset) > intervalTime) { - emit notify(); - elapsedTimeOffset = timeStamp.elapsed() + elapsedTimeOffset - intervalTime; - timeStamp.restart(); - } - - return true; -} - -qint64 QAudioOutputPrivate::elapsedUSecs() const -{ - if (deviceState == QAudio::StoppedState) - return 0; - - return timeStampOpened.elapsed()*1000; -} - -QAudio::Error QAudioOutputPrivate::error() const -{ - return errorState; -} - -QAudio::State QAudioOutputPrivate::state() const -{ - return deviceState; -} - -void QAudioOutputPrivate::reset() -{ - close(); -} - -OutputPrivate::OutputPrivate(QAudioOutputPrivate* audio) -{ - audioDevice = qobject_cast<QAudioOutputPrivate*>(audio); -} - -OutputPrivate::~OutputPrivate() {} - -qint64 OutputPrivate::readData( char* data, qint64 len) -{ - Q_UNUSED(data) - Q_UNUSED(len) - - return 0; -} - -qint64 OutputPrivate::writeData(const char* data, qint64 len) -{ - int retry = 0; - qint64 written = 0; - - if((audioDevice->deviceState == QAudio::ActiveState) - ||(audioDevice->deviceState == QAudio::IdleState)) { - qint64 l = len; - while(written < l) { - int chunk = audioDevice->write(data+written,(l-written)); - if(chunk <= 0) - retry++; - else - written+=chunk; - - if(retry > 10) - return written; - } - audioDevice->deviceState = QAudio::ActiveState; - } - return written; -} - -QT_END_NAMESPACE - -#include "moc_qaudiooutput_win32_p.cpp" |